LEVELLING SYSTEM FOR A VEHICLE, IN PARTICULAR A RAIL VEHICLE
The present invention relates to a levelling system (10; 10') for a vehicle, in particular a rail vehicle (12), comprising at least one levelling cylinder (18) and a levelling piston (16; 16'). The levelling piston (18; 16') is at least ...

WO/2019/094956A1

CYLINDER TYPE AUTO VALVE SHUTTER
Valve shutters to operate by means of gear engagement, so that a gas valve may be accurately rotated open or closed; wherein a pinion gear, which connects to a handle portion of a gas valve and rotates the handle of the gas valve, is dis...

A FELLING HEAD FOR A MULTI-PROCESS MACHINE
The invention relates to a multi-process machine and specifically to its suspension device (20) equipped with two hydraulic cylinders (25, 27) for rotating the machine relative to an arm (21) supporting it. One cylinder (2.5) is pivoted ...

WO/2019/087267A1

PNEUMATIC ACTUATOR
The present invention addresses the problem of providing a pneumatic actuator with improved durability. As a solution therefor a pneumatic actuator (10) is characterized by being equipped with an actuator main body section (100) configur...

WO/2019/086181A1

ELECTRO-HYDRAULIC LINEAR ACTUATOR
The electro-hydraulic linear actuator comprises an individual pump unit (P) that is driven via a motor and in a rotational manner. The pump unit (P) is fluidically connected to the working chamber of the first hydraulic cylinder (Z1) and...

WO/2019/076563A1

ACTUATING DEVICE WITH DIRT SHIELDING
An actuating device (10) for a motor vehicle, comprising a housing (12) and a multi-part working piston (14) which is movable in relation to the housing (12), wherein the multi-part working piston (14) has a main piston (22) and an adjus...

WO/2019/076394A1

HYDRAULIC UNIT OF A REVERSIBLE PLOUGH
The invention relates to a hydraulic unit of a reversible plough, comprising a double-acting working cylinder (1) and a hydraulic control unit (2), in which: the piston (3) comprises a radially peripheral seal (8) and at least one piston...

WO/2019/077987A1

CYLINDER DEVICE
A piston (6) is inserted hermetically into a cylinder hole (2) in a housing (1) with a sealing member (7) interposed therebetween, in such a way as to be capable of moving in a vertical direction. A communicating passage (21) formed in a...

WO/2019/076412A1

PITCH SYSTEM FOR A WIND TURBINE
A drive assembly for adjusting the pitch of a wind turbine blade comprises a stator having a cylindrical body and a drive member positioned at least partially within the cylindrical body and movable along an axis thereof. A mounting pin ...

WO/2019/077207A1

OSCILLATION CYLINDER ARRANGEMENT
The oscillation cylinder arrangement (100) comprises a working cylinder (10A) and a piston with a rod (27A), arranged to move therein, and a control valve structure (20) for the working cylinder (10A). The control valve structure (20) in...

WO/2019/076391A1

TWO-WAY HYDRAULIC UNIT
The invention relates to a two-way hydraulic unit comprising a double-acting working cylinder (1) and a hydraulic control unit (2), in which: the piston (3) comprises a radially peripheral seal (8), a first piston ring (9) with a first p...

PRESSURE RESISTANCE INSTRUMENT AND FLUID PRESSURE CYLINDER
A pressure resistance instrument (100) comprises: a cylindrical main body part (110); a lid part (120) at which a wall part (122) and the main body part (110) are joined together; a positioning part (140) provided facing the inner periph...

BENT SENSOR FOR POSITION TRANSDUCER
A sensor assembly includes a body having a guide surface. A sensor head is mounted to the body. An elongated sensing element has a first end connected to the sensor head and a second end extending away from the first end along the body a...

ARTIFICIAL MUSCLE
The present invention pertains to an artificial muscle comprising an elastic-body tube and a sleeve containing high-strength fibers, wherein: the outside of the elastic-body tube is covered by the sleeve; the tube coverage rate is 70-100...

WO/2019/058102A1

ACTUATOR ROTATIONAL ALIGNMENT DEVICE
An e.g. fluid powered linear actuator (30) is provided with a helical orientation surface (40) in a fixed angular position relative to a first component (32); and a follower (50) in a fixed angular position relative to a second component...

WO/2019/056842A1

INTEGRATED ROTARY CYLINDER
A completely integrated cylinder capable of reciprocating rotation. A manifold block (5) is positioned above a horizontal cylinder casing (2) and integrated with a cylinder body (8). A right fuel channel (5.1) of the manifold block has a...

WO/2019/060285A1

AUTOMATIC PNEUMATIC FASTENER DRIVING TOOL ADAPTER
An adapter converts a fastener driving tool into an automatic (multiple shots per second) pneumatic fastener driving tool. The adapter is mounted to the top of the frame body of a pneumatic fastener driving tool, in which the adapter has...

WO/2019/053397A1

SEAL HOUSING
The present invention provides a seal housing (102) for releasable attachment to a hydraulic or pneumatic cylinder (101), the seal housing (102) being suitable for retaining a seal assembly and the seal housing (102) comprising a general...

WO/2019/054624A1

FLUID SUPPLY STRUCTURE FOR ACTUATOR PISTON ASSEMBLY
The present invention relates to a fluid supply structure for an actuator piston assembly, the structure being formed such that a fluid is supplied or discharged through one inflow/discharge path at each of a pair of chambers for operati...

WO/2019/049500A1

HYDRAULIC CYLINDER
This hydraulic cylinder (10) is provided with a cylinder tube (12), a piston unit (18), and a piston rod (20). The piston unit (18) has: a piston body (40); packing (42) mounted on the piston body (40); a holding member (44) mounted on t...

WO/2019/049501A1

PISTON UNIT AND HYDRAULIC CYLINDER
This piston unit (18) is provided with: a piston body (40); packing (42) mounted on an outer circumferential portion of the piston body (40); a holding member (44) having a plurality of magnet holding portions (58) that are arranged alon...

PISTON LIMIT SENSING FOR FLUID APPLICATION
A liquid delivery system (106) includes a source of hydraulic fluid (502) and a hydraulic cylinder (114) fluidically coupled to the source of hydraulic fluid (502) and having a hydraulic piston (224) movable between first and second limi...

ACTUATOR BEARING ARRANGEMENT
Embodiments of the present invention describe the arrangement of bearings in actuators. In particular, the bearings are fit into a surface of the actuation member instead of into the housing for the actuation member. In an exemplary embo...

ELECTROHYDRAULIC ACTUATOR
A modular electrohydraulic actuator including an electric motor, a hydraulic pump driven by the electric motor, and a hydraulic actuator in fluid communication with the hydraulic pump. The hydraulic actuator includes a hydraulic cylinder...

HYDRAULIC CYLINDER FOR ACTUATING A PRE-FILL VALVE
The present disclosure relates to a pre-fill hydraulic cylinder for actuatin a pre-fill valve. The pre-fill hydraulic cylinder has features for providing enhance alignment between a valve seat and a poppet moved by the pre-fill hydraulic...

WO/2019/032904A1

SEALING RING ASSEMBLIES CONFIGURED FOR PRESSURE LOCKING
A sealing ring (200) includes a first sealing element (220) having a first mating surface and a second sealing element (230) having a second mating surface. A high-pressure boundary (250) extends across at least a portion of the first se...

WO/2019/032922A1

PISTON SEALING RING ASSEMBLY HAVING A GAP COVER ELEMENT
The present disclosure provides a sealing ring assembly having a ring and one or more gap cover elements, configured to seal a high-pressure region from a lower pressure region of a piston and cylinder device. The ring may be segmented, ...

HYDRAULIC DRIVE DEVICE
This hydraulic drive device is provided with: an electric motor; a variable capacity pump which is driven by the electric motor and which has a pair of pump ports of which a discharge side and a suction side switch in accordance with the...

WO/2019/020617A1

SWIVELING UNIT
Disclosed is a swiveling unit for swiveling objects, comprising a housing and at least one piston which delimits at least two chambers, further comprising an adjustable element which can be moved in different movement phases according to...

HYDRAULIC ACTUATOR
The invention relates to a hydraulic actuator (100) comprising a barrel (2), a plunger piston (8), and a loose piston (14); said plunger piston is being arranged inside said barrel and at a first axial end (10) thereof comprises a piston...

WO/2019/011713A1

HYDRAULIC CYLINDER
The invention relates to a hydraulic cylinder comprising a body (1) having a wall (3) that defines an internal cylindrical cavity (2), with a cylindrical cavity axis (X), in which a piston (4) is movably mounted, said piston (4) separati...

WO/2019/011860A1

DYNAMIC OPEN CENTER HYDRAULIC SYSTEM CONTROL
The present invention relates to a hydraulic valve control unit for an open center hydraulic system, the open center hydraulic system comprising a pump, a shunt valve and one or more actuator valves coupled to the shunt valve, wherein ea...

WO/2019/014430A1

UNSUPPORTED PISTON WITH MOVING SEAL CARRIER
The subject matter of this specification can be embodied in, among other things, a rotary actuator that includes a housing defining a first arcuate chamber portion and comprising a first cavity, a first open end, a first seal carrier ass...